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US 4,086,538 AGranted
Gated pulse generator
AssigneeHoneywell Inc.
InventorDonald S. Foreman
Life of this patent
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Abstract
A gated pulse generator produces on output pulse for every period in which an input signal is continuously in a particular state for longer than a minimum gating interval. If the input signal changes state within the minimum gating interval, no output pulse is produced.
Claims3
A gated pulse generator comprising:
- first switching means comprising an amplifier having an output terminal, an inverting input terminal, and a non-inverting input terminal with the output terminal switching from a first output state to a second output state when a signal at the inverting input terminal reaches a first threshold level;
- capacitor means connected to the inverting input terminal of the first switching means;
- second switching means comprising an amplifier having an output terminal, an inverting input terminal, and a non-inverting output terminal;
- third switching means comprising an amplifier having an output terminal, an inverting input terminal, and a non-inverting input terminal;
- said output terminals of said second and said third switching means connected to the capacitor means for controlling the charging of the capacitor means as a function of an input signal;
- a reference potential applied to the non-inverting input terminal of the second switching means and the inverting input terminal of the third switching means;
- said input signal being applied to the inverting input terminal of the second switching means;
- and the output terminal of the first switching means being connected to the non-inverting input terminal of the third switching means for causing the first switching means to switch between said output states, whereby an output pulse is provided.
5 more elements
Dependencies are inferred from the claim text.